Bases & Acids Quizz

Which of the following substances is an acid?

• a) Sodium hydroxide (NaOH)

• b) Citric acid (found in lemons)

• c) Baking soda (sodium bicarbonate)

• d) Water

Which of the following is not a property of acids?

• (a) Reacts with metals to produce hydrogen gas

• (b) Has a pH less than 7

• (c) Tastes salty

• (d) Turns blue litmus paper red

Which of the following is a common base found in household products?

• (a) Citric acid

• (b) Sodium hydroxide

• (c) Hydrochloric acid

• (d) Carbonic acid

What happens when an acid and a base react?

• They produce a neutral solution.

• They release energy in the form of heat.

• They form a salt and water.

• (d) They become more acidic.

What is the pH of a neutral solution?

• (a) 0

• (b) 7

• (c) 10

• (d) 14

Which of the following is used to measure the acidity or basicity of a solution?

• (a) Thermometer

• (b) Graduated cylinder

• (c) pH meter

• (d) Balance

1. Acids are always harmful to living things. (True/False)

• True

• False

All fruits contain acids that give them their sour taste.

• True

• False

Baking soda is a base that can be used to neutralize stomach acid.

• True

• False

The pH of pure water is 7

• True

• False